CVE-2021-20077

Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.

CVSS v3 6.7 MEDIUM
CVSS v2.0 7.2 HIGH

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.tenable.com/security/tns-2021-04-0	Patch Vendor Advisory
https://www.tenable.com/security/tns-2021-07	Not Applicable Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:tenable:nessus_agent:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-03-19 19:15

Updated : 2024-02-28 18:08

NVD link : CVE-2021-20077

Mitre link : CVE-2021-20077

CVE.ORG link : CVE-2021-20077

JSON object : View

Products Affected

tenable

nessus_agent

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-20077", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.8}]}, "published": "2021-03-19T19:15:13.497", "references": [{"url": "https://www.tenable.com/security/tns-2021-04-0", "tags": ["Patch", "Vendor Advisory"], "source": "vulnreport@tenable.com"}, {"url": "https://www.tenable.com/security/tns-2021-07", "tags": ["Not Applicable", "Vendor Advisory"], "source": "vulnreport@tenable.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token."}, {"lang": "es", "value": "Se encontr\u00f3 que las versiones 7.2.0 a 8.2.2 del Agente Nessus capturan inadvertidamente el token de seguridad del rol IAM en el host local durante la vinculaci\u00f3n inicial del Agente Nessus cuando se instala en una instancia de Amazon EC2. Esto podr\u00eda permitir a un atacante privilegiado obtener el token"}], "lastModified": "2022-10-28T14:28:52.420", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tenable:nessus_agent:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1F349161-FB60-4003-B328-6FD49D226195", "versionEndExcluding": "8.2.3", "versionStartIncluding": "7.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "vulnreport@tenable.com"}